JP5132079B2 - Antifouling / antibacterial / antifungal concrete block and method for producing the same - Google Patents
Antifouling / antibacterial / antifungal concrete block and method for producing the same Download PDFInfo
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- JP5132079B2 JP5132079B2 JP2006122105A JP2006122105A JP5132079B2 JP 5132079 B2 JP5132079 B2 JP 5132079B2 JP 2006122105 A JP2006122105 A JP 2006122105A JP 2006122105 A JP2006122105 A JP 2006122105A JP 5132079 B2 JP5132079 B2 JP 5132079B2
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Description
本発明は、外構等に用いるコンクリートエクステリア製品の表面を、汚れやカビ等の付着から防ぐための表面保護技術に関する。 The present invention relates to a surface protection technique for preventing the surface of a concrete exterior product used for an exterior or the like from adhering to dirt or mold.
従来から、コンクリートブロック表面を汚れやカビの発生から保護するため、撥水剤や抗菌・防カビ・防藻剤を、表面に塗布し、あるいはコンクリートに練り込んだりする方法が実施されてきた（例えば、特許文献１）。 Conventionally, in order to protect the concrete block surface from the occurrence of dirt and mold, a method of applying a water repellent, antibacterial, antifungal and antialgal agent to the surface or kneading into concrete has been carried out ( For example, Patent Document 1).
しかしながら、表面の外観と透気性を保持したまま、水だけでなく油類に対しても撥液性を示し、防汚効果を長期にわたって保ちつつ、抗菌・防カビ性を効果的に長時間持続して示すコンクリートブロック及びその表面処理方法は開発されていなかった。それは特に、撥水・撥油性と抗菌・防カビ性を同時に付与するために、撥水剤や撥油剤と、抗菌・防カビ剤を同時に塗布しようとする場合、互いの相互作用で効果が半減し、変色し、あるいは相互に均一分散し難いために均一な塗布が困難となり、さらには長期にわたる十分な効果が発揮し難い等の多くの問題が生じていたからである。 However, while maintaining the appearance and air permeability of the surface, it exhibits liquid repellency not only for water but also for oils, effectively maintaining antibacterial and antifungal properties for a long time while maintaining antifouling effect Thus, the concrete block and the surface treatment method thereof have not been developed. In particular, when water and oil repellents and antibacterial / antifungal agents are applied simultaneously to provide water / oil repellency and antibacterial / antifungal properties at the same time, the effects of each other are halved. In addition, it is difficult to uniformly disperse or disperse uniformly to each other, so that it becomes difficult to apply uniformly, and further, it is difficult to exert a sufficient effect over a long period of time.
又、抗菌・防カビ剤のみの被覆では、汚れに対する抵抗性がなく、表面に汚れが付着した場合、その汚れ自体にカビが発生し、抗菌、防カビ剤の効果がなくなるといった問題が生じていた。 In addition, coating with only antibacterial / antifungal agents has no resistance to dirt, and if dirt adheres to the surface, the dirt itself will become moldy and the antibacterial / antifungal agent will lose its effect. It was.
そこで本発明では、防汚と防カビの両方の機能を複合して表面被覆することのできる成分からなる表面処理加工液を鋭意研究の結果見出し、コンクリートブロックに塗布することに成功した。 Therefore, in the present invention, as a result of earnest research, a surface treatment processing liquid composed of components capable of covering both surfaces of antifouling and mold prevention has been successfully found and successfully applied to a concrete block.
泥分やホコリ等の汚れを含んだ水や油分がブロック表面を濡らし、それが蒸発した後、汚れとして表面にこびり付く。したがって、汚れを含んだ水や油で表面が濡れず、弾いてしまう撥水、撥油加工が防汚対策としてきわめて有効である。発明者らは撥水・撥油剤を種々試験した結果、フッ素系撥水・撥油剤が最も有効であることを発見した。 Water or oil containing dirt such as mud and dust wets the block surface, and after it evaporates, it sticks to the surface as dirt. Therefore, water repellent and oil repellent finishes that do not wet the surface with dirt-containing water or oil and are repelled are extremely effective as antifouling measures. As a result of various tests on water and oil repellents, the inventors have found that fluorine water and oil repellents are most effective.
更に、外部からの汚れを防ぐと同時にカビや藻の発生を防ぐための抗菌・防カビ剤を探索した。その結果、イミダゾール系の防カビ剤が、防カビ効果も優れ、コンクリートのアルカリ性に対しても耐久性を有していることがわかった。 Furthermore, we searched for antibacterial and antifungal agents to prevent contamination from the outside and at the same time prevent the generation of mold and algae. As a result, it was found that the imidazole-type anti-fungal agent has an excellent anti-fungal effect and has durability against the alkalinity of concrete.
そして発明者らは各種の防汚剤と抗菌・防カビ剤を組み合わせて、相互の分散性、塗布・浸透性について試験を行い、フッ素系の撥水・撥油剤とイミダゾール系の防カビ剤の組み合わせが防汚と抗菌・防カビの両方の効果を最も顕著に発揮することを見出したのである。 The inventors combined various antifouling agents with antibacterial and antifungal agents and tested each other for dispersibility, coating and penetrability, and developed a fluorinated water and oil repellent and an imidazole antifungal agent. It was found that the combination exhibited the most remarkable effects of both antifouling and antibacterial / antifungal.
そこで下記の手段により、上記課題を解決する。 Therefore, the above problem is solved by the following means.
（１）撥水・撥油性を有するフッ素系撥水剤と、コンクリートのアルカリ性に対して耐久性を有し、主成分がイミダゾール系の抗菌・防カビ剤とを水に溶解あるいは分散させた表面処理加工液で表面処理することを特徴とするコンクリートブロックを提供する。 (1) Surface obtained by dissolving or dispersing in water water a fluorine-based water repellent having water and oil repellency and an imidazole antibacterial / antifungal agent having durability against the alkalinity of concrete. Provided is a concrete block characterized by being surface-treated with a processing fluid .
（２）溶媒中に撥水・撥油性を有するフッ素系撥水剤と、コンクリートのアルカリ性に対して耐久性を有し、主成分がイミダゾール系の防カビ剤を水に溶解あるいは分散させた表面処理加工液をコンクリートブロック表面に付着浸透させることを特徴とするコンクリートブロックの製造方法を提供する。 (2) and fluorine-based water repellent agent having a water and oil repellency in a solvent, has a durability against alkaline concrete, the main component is a fungicide of an imidazole is dissolved or dispersed in water Provided is a method for producing a concrete block, characterized in that a surface treatment processing liquid adheres to and penetrates into a concrete block surface.
（３）コンクリートブロック製品の表面処理加工において、目地部を構成する側面をカバーすることにより、側面への表面処理加工液の付着を防ぐことを特徴とする（２）に記載のコンクリートブロックの製造方法を提供する。 (3) In the surface treatment processing of a concrete block product, the adhesion of the surface treatment processing liquid to the side surface is prevented by covering the side surface constituting the joint part. Provide a method.
フッ素系撥水・撥油剤を主成分とする防汚剤とイミダゾール系を主成分とする防カビ剤とを、水を溶媒として、溶解あるいは分散させ、コンクリートブロック表面に塗布することにより、水、油等の液体が浸み込むのを防止でき、優れた防汚、防カビ性を有するコンクリートブロックを得ることができる。 By dissolving or dispersing an antifouling agent mainly composed of a fluorine-based water / oil repellent and an antifungal agent mainly composed of an imidazole based on water as a solvent, water is applied to the concrete block surface, A liquid such as oil can be prevented from entering, and a concrete block having excellent antifouling and antifungal properties can be obtained.
本発明に用いる撥水、撥油性を有する防汚剤の主成分はフッ素系撥水剤である。そして抗菌・防カビ剤の主成分はイミダゾール系である。これらの成分を、水を溶媒とし混合して溶解あるいは分散させて表面処理加工液とする。そしてその表面処理加工液をコンクリートブロックに塗布することにより、コンクリートブロック表面をコーティングすることができる。 The main component of the antifouling agent having water and oil repellency used in the present invention is a fluorine-based water repellent. The main component of the antibacterial / antifungal agent is imidazole. These components are mixed or dissolved or dispersed in water as a solvent to obtain a surface treatment processing liquid. And the concrete block surface can be coated by apply | coating the surface treatment process liquid to a concrete block.
表面に塗布する際には、コンクリートブロックの目地部分となる側面に上記表面処理加工液が塗布されることのないように、側面をカバーすることが必要である。底抜きの型枠にコンクリートブロックをはめ込み、あるいは成形後の型抜きにおいて底面を離脱し、側面を型枠でカバーした状態にした後に、コンクリートブロック表裏に表面処理加工液を塗布してもよいし、側面をシールして、表面処理加工液が側面に付着しないようにしてから表裏に表面処理加工を行ってもよい。更に、コンクリートブロックを敷き詰めるように並べて、表裏に表面処理加工液を塗布しても良い。このように側面に表面処理加工液が付着しないようにするのは、表面処理加工液によりモルタルが弾かれてコンクリートブロックの接合力を弱めることのないためである。 When applying to the surface, it is necessary to cover the side surface so that the surface treatment processing liquid is not applied to the side surface which becomes the joint portion of the concrete block. A concrete block may be applied to the front and back of the concrete block after the concrete block is fitted into the bottomed formwork, or the bottom surface is removed in the die-cutting after molding and the side surface is covered with the formwork. The surface treatment may be performed on the front and back surfaces after the side surfaces are sealed so that the surface treatment liquid does not adhere to the side surfaces. Further, the concrete blocks may be arranged so as to be spread, and the surface treatment processing liquid may be applied to the front and back surfaces. The reason for preventing the surface treatment liquid from adhering to the side surfaces is that the mortar is not repelled by the surface treatment liquid and the bonding force of the concrete block is not weakened.
本発明により表面加工処理したコンクリートブロックに水や油を付着させた場合、無加工やシリコン撥水剤による加工処理とは異なり、図１のように撥液し、コンクリートブロックに浸み込むことはない。 When water or oil is attached to a concrete block that has been surface-treated according to the present invention, unlike the non-processed or silicon water repellent, the liquid repellent and penetrates into the concrete block as shown in FIG. Absent.
表面処理剤としてシリコーン系表面処理剤、アクリル系表面処理剤、フッ素系表面処理剤の夫々を塗布したコンクリートブロックに対し水と油を作用させた。その結果を示したものが表１である。 Water and oil were allowed to act on a concrete block coated with a silicone surface treatment agent, an acrylic surface treatment agent, and a fluorine surface treatment agent as a surface treatment agent. The results are shown in Table 1.
無処理のコンクリートブロックはそのまま水、油とも浸透してしまい、シリコーン系表面処理剤、アクリル系表面処理剤を塗布したコンクリートブロックは、水ははじいたが、油は浸透してしまった。この点、フッ素系表面処理剤は水、油の両方に対して撥液効果があることが分かる。 The untreated concrete block permeated with water and oil as it was, and the concrete block coated with the silicone surface treatment agent and the acrylic surface treatment agent repelled water, but the oil permeated. In this regard, it can be seen that the fluorine-based surface treating agent has a liquid repellent effect on both water and oil.
抗菌・防カビ剤の防カビ効果について、無機系の抗菌・防カビ剤とイミダゾール系の抗菌・防カビ剤で比較を行った。試験方法は下記のとおりである。
１．試験法：JIS Z-2911カビ抵抗性試験 合成樹脂指定黴
２．試験方法：減菌シャーレにカビ用寒天培地を約１５ｍｌ分注する。固化後、カビの菌液を含む寒天培地を約５ｍｌ重層する。試料を培地中央に埋め込み、蓋をして２８℃で７日間培養し、抗菌・防カビ効力の有無を観察した。
３：供試カビ
Penicillium citrinum FERM S-5
Cladosporium cladosporioides FERM S-8
Chaetomium globosum FERM S-11
The antifungal effect of antibacterial and antifungal agents was compared between inorganic antibacterial and antifungal agents and imidazole antibacterial and antifungal agents. The test method is as follows.
1. Test method: JIS Z-2911 Mold resistance test Synthetic resin designation 黴 2. Test method: About 15 ml of mold agar medium is dispensed into a sterilized petri dish. After solidification, about 5 ml of an agar medium containing a fungal fungal solution is overlaid. The sample was embedded in the center of the medium, capped and cultured at 28 ° C. for 7 days, and observed for antibacterial and antifungal effects.
3: Test mold
Penicillium citrinum FERM S-5
Cladosporium cladosporioides FERM S-8
Chaetomium globosum FERM S-11
この結果から明らかなように、本発明に係る実施例の防カビの効果が最も高いことが分かる。 As is apparent from this result, it can be seen that the fungi-proof effect of the example according to the present invention is the highest.
図２は本発明の抗菌・防カビ性の効果を示す写真である。右側が本発明、左側が比較例１である。この図から明らかなように、本実施例にかかる発明のブロックの周囲にはカビが生えず、ブロックを避けるように培地に白カビ、黒カビが発生している。一方、比較例１においてはブロックの周囲まで白カビが発生しており、抗菌、防カビの効果が低いことが分かる。したがって、この実験結果より、本発明に係るコンクリートブロックの抗菌・防カビ性が高いことが判明した。 FIG. 2 is a photograph showing the antibacterial and antifungal effects of the present invention. The right side is the present invention, and the left side is Comparative Example 1. As is apparent from this figure, mold does not grow around the block of the invention according to the present embodiment, and white mold and black mold are generated in the medium so as to avoid the block. On the other hand, in the comparative example 1, white mold | fungi have generate | occur | produced to the circumference | surroundings of a block, and it turns out that the antibacterial and antifungal effect is low. Therefore, from this experimental result, it was found that the concrete block according to the present invention has high antibacterial and antifungal properties.
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| USD808799S1 (en) | 2015-11-17 | 2018-01-30 | Hunter Fan Company | Carton with color striping |
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| JP2016011393A (en) * | 2014-06-30 | 2016-01-21 | マチダコーポレーション株式会社 | Method of producing surface treatment liquid, surface treatment liquid and surface treatment method |
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| JP2909738B2 (en) * | 1987-05-21 | 1999-06-23 | 株式会社 小野田 | A method for repairing mold and mold on the surface of concrete or mortar composition |
| IT1218205B (en) * | 1988-04-08 | 1990-04-12 | Ausimont Spa | USE OF FLUOROPOLYETER DERIVATIVES IN THE FORM OF AQUEOUS MICROEMULSION FOR THE PROTECTION OF STONE MATERIALS FROM ATMOSPHERIC AGENTS |
| JP2621427B2 (en) * | 1988-10-14 | 1997-06-18 | 三菱マテリアル株式会社 | Water- and oil-repellent building materials |
| JPH0687678A (en) * | 1992-09-02 | 1994-03-29 | Osaka Gas Co Ltd | Concrete and concrete finishing agent |
| JP3602563B2 (en) * | 1993-12-24 | 2004-12-15 | 信越化学工業株式会社 | Impregnating waterproofing composition |
| JP2000282491A (en) * | 1999-03-30 | 2000-10-10 | Daikichi Suematsu | Block for retaining wall |
| JP2001114581A (en) * | 1999-10-19 | 2001-04-24 | Kumagai Gumi Co Ltd | Waterproof treating agent for cement-based hardened product |
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| USD808799S1 (en) | 2015-11-17 | 2018-01-30 | Hunter Fan Company | Carton with color striping |
| USD865514S1 (en) | 2015-11-17 | 2019-11-05 | Hunter Fan Company | Carton with color striping |
| USD944642S1 (en) | 2015-11-17 | 2022-03-01 | Hunter Fan Company | Carton with color striping |
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